If anyone has any examples of someone convicted because of a modified trigger. . .

Strawman Alert! As has been pointed out numerous times by folks who have actually done it, a modification is is not going to be the independent cause of a conviction. However, it can be one variable among many, and it is a variable where the cost almost always outweighs the benefit. Rarely will a single issue get a person convicted, it is almost always a combination of issues. And even if one does not get convicted it doesn't mean there haven't been problems.